Tastes and Smells Are Distinct Kinds of Environmental Information in That

Multiple Choice

Tastes and smells are distinct kinds of environmental information in that

A) odorants are airborne,and tastants are present in fluids.
B) humans can detect many more types of tastants than odorants.
C) distinguishing tastant molecules requires learning,whereas smell discrimination is an innate process.
D) odorants bind to receptor proteins,but none of the tastant stimuli will bind to receptors.